/*
 * Copyright 2024 LinQingYing. and contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * The use of this source code is governed by the Apache License 2.0,
 * which allows users to freely use, modify, and distribute the code,
 * provided they adhere to the terms of the license.
 *
 * The software is provided "as-is", and the authors are not responsible for
 * any damages or issues arising from its use.
 *
 */

package com.linqingying.cangjie.analyzer

import com.linqingying.cangjie.name.FqName
import com.linqingying.cangjie.name.parentOrNull
import com.linqingying.cangjie.psi.CjElement
import com.linqingying.cangjie.psi.CjImportDirectiveItem
import com.linqingying.cangjie.psi.CjPackageDirective
import com.linqingying.cangjie.psi.psiUtil.getParentOfTypes2
import com.linqingying.cangjie.resolve.QualifiedExpressionResolver

fun FqName.withRootPrefixIfNeeded(targetElement: CjElement? = null): FqName {
    if (canAddRootPrefix() && targetElement?.canAddRootPrefix() != false) {
        return FqName(QualifiedExpressionResolver.ROOT_PREFIX_FOR_IDE_RESOLUTION_MODE_WITH_DOT + asString())
    }

    return this
}
fun FqName.canAddRootPrefix(): Boolean {
    return !asString().startsWith(QualifiedExpressionResolver.ROOT_PREFIX_FOR_IDE_RESOLUTION_MODE_WITH_DOT)
            && parentOrNull()?.isRoot == false
}
fun CjElement.canAddRootPrefix(): Boolean {
    return getParentOfTypes2<CjImportDirectiveItem, CjPackageDirective>() == null
}
